Diana has $10 more than Olivia. Wendy has nine times as much money as Diana. They have a total of $144.
- How much money does Diana have?
- How much money does Wendy have?
(a)
Amount that Diana has = 1 u
Amount that Olivia has = 1 u - 10
Amount that Wendy has = 9 u
Total amount that they has
= 1 u + 1 u - 10 + 9 u
= 11 u - 10
11 u - 10 = 144
11 u = 144 + 10
11 u = 154
1 u = 154 ÷ 11 = 14
(b)
Amount that Wendy has
= 9 u
= 9 x 14
= $126
Answer(s): (a) $14; (b) $126